Presser foot



0. BALZANO PRESSER FOOT Aug. 17, 1943.

Filed March 4, 1941 Fig. I a t 3 To illustrate a preferred embcdiment'of myl Patented Aug. 17, 1943 :i.-;"2,326,81 8- F PRESSER, FOOT '1 '0reste Balzano,-Nw Haven. Conn, assignor to i j The Greist Manufacturing Company, New Haven, Conn, a corporation of Connecticut Application March 4, 1941, Serial No. 381,666.

8 Claims. .(01. 112-235) This invention relates to sewing machine a:- tachments, and more particularly to a presser foot designed to be mounted at the lower end of the presser bar of a sewing machine, and so constructed that the foot member may tilt or rock relatively to the. attaching shank by which the foot member is secured to the presser bar.

In the past when a nection has been provided. for the presser foot,

this has usuallybeen effected by drilling --or; boring a small opening through a portion of the attaching member, and. also throughflang es or lugs on. the presser foot, and .securing a pivot pin in these openings so that -the two parts will be pivotally connected.- Such; a construction requires drilling operations, and as. the parts are relatively small it is necessary to drill relatively small openings for thepivot pin.

Such operations are expensive and greatly .increasethe cost of the attachment; whichotherwise. is of simple and economical construction.

I contemplate by the present invention'elii'nhmating the expensive drilling operations re-.

ferred to above, by so' constructing the presser foot that itmay be tiltably or rockably secured to the attaching shank bya'novel and unique connection (which avoids the drillingf of any openings. V t 7 One object'of the invention is the provision of a tiltable or rockablepresser foot of novel and economical construction. Y

A stillfurther object. of the mass is the provision .of a presser foot constructio'n whereinthe foot member. will be tiltably or rookably secured to the attaching shank, and-which at the same time requires no drilling for connecting the parts together.

-To these and other ends the inventionconsists in thenovel features and combinations or parts to be hereinafter described andjclairned. In the accompanying drawing:

Fig. 1 is a perspective view'of'a p reslser toot.

construction embodying my invention;

Fig. 2 is a side elevational view thereof some;

what enlarged; 3 is a sectional view on line 3-3 of Fig; ,2;

Fig. l is a longitudinal sectional view on line.

4-4 of Fig. 3;

Fig. 5 is a perspective vie w of the attaching shank; Fig. 6 is a perspective view of the foot memher and sheet metal flanged element securedthereto; and

Fig. 7 is a sectional view on line l 'l "of rockable or titabl'e con-- portion or member H. As shown, thejshank member is substantially of Z-shaped construction, having agslot l2 by which-it maybe secured to the presser barof the sewing machine 111' the usual manner, a shank'portion 13, and a substantially horizontally. extending portion I4 which is adapted to carry the foot member Hi. As shown more "especiallyinFig. 5,. the portionl l of the attaching shank is pro- .vided withan elongated recessor slot. l5 extending transversely across this: portion of the operations invention I have shown a presser foot construction comprising a foot member designated generally by the numeral Hi, and an attaching shank member, the purpose of which will be hereinafter referred to;

Generally speaking the foot member ltlmay be of the usual form. As shown, it comprises a substantially horizontally extending flat portion It provided withbifurcated end portions i1 and i8 between which lies the-.needleslot H9. The end portions if'l and Iii may be inclined upwardly' slightly, as is usual.v

In order to secure thev foot portion to the attaching shank for. relative tilting or rocking movements, Isecure upon the: body 16 of the foot member'a sheet metal channel-shapedelement having a body or webportion 29 and upstanding side portions 2! and 22. The portion it maybe secured flatly upon the portion iii of the foot member, and spot welded thereto. The flanges 2! and 22 may be provided with cars 23 and Ztwithin which openings .25 and. 25 may be formed. As this. member. may be 1 of relatively thin material, the'openings 215 and 26 may beformed by piercing operations before the flanges are'turned up, so that no drilling operations will be required.

After this channel-shaped m emberis secured V to the foot member I 6, the portion M of theattaching shank H is placed in position between the .fiangesZ I. and 22, so that the groove !5 will be aligned with the openings 25 and 25. A pivot pin 21 is then inserted through the openings. 25' and 2B, which pivot pin may be headed. slightly at its ends to prevent detachment there of. It is noted that the body of this pinwill lie partially within the groove !5 so that the portion M of the attaching shankwill beat matched to thejfoot member m.

Fulcrum means is provided between the shank;

and the foot in thefcrm of a'boss 39 which illustrated is provided on the member, 2!! and tom of the slot l5 so as to allow sufficienthla between the parts to permit this rocking move:

ment as well as the tilting (Sr rocking about the.

axis of the pivot pin. As shown more especially in Fig. '7, the groove l5 may be somewhatdeeper at its ends than at the central portion so as to facilitate therocking movement about a longitudinal axis. The lower forward corner of the portion I 4 of the attaching shank, may be slightly rounded, as shown at 28, to permit greater freedom of the'parts in tilting about 1 the pin 21. Thus the footmember may rock or tilt about a transverse axis to raise and lower ,1

the front end thereof, and may also rock about 10 ment about the axis of the pin 21 and also transversely of this axis. Moreover, with the construction described,- all drilling operations are eliminated and the entire construction canbe made at a lowercost than has been possible with similar constructions in the past.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the appended claims.

What Iclaim is a I H 1, A presser foot construction comprising a foot member, a sheet metal member of channelshaped cross section having its body portion secured to the upper surface of the foot member, and its flanges projecting upwardly therefrom, an attaching shank having a forwardly extending portion lying between said flanges,'and a pin secured in said flanges vto overlie said shank portion and connect the foot member thereto for rocking motion, said shank portion having a transversely extending groove in itsupper surface within which said pin is disposed, and said groove having an outwardly convex bottom wall to provide greater clearance between said pin andthe bottom of said groove adjacent the ends of the pin than at the intermediate portion thereof.

2. A presser foot construction for sewing machinescomprising a foot member, a pin. carried by said member in spaced relation to theupper surface thereof and extending transversely across said surface, an attaching shank having a portion extending between said'member and pin provided with an upwardly facing transverse portion of said pin.

4. -A presser foot construction comprising a foot member, asheetmetal member of channelshaped cross section having its body portion secured to the upper surface of th foot member and its flanges projecting upwardly therefrom,

an attaching shank having a forwardly extend- ;ingportionlying between said flanges, a pin secured in said flanges to overlie said shank por- 3 tion and connect the foot member thereto, and

groove in which said pin is disposed, and fulupper surface thereof and extending transversely,

across said surface, an attaching shank having a. portion extending between said member and pin and provided with an upwardly facing transverse groove in which said pin is disposed, and fulcrum means on the foot member below said shank portion on which the foot member rocks about a longitudinal axis, said fulcrum means comprising a boss provided upon and projecting upwardly from the foot member, and said fulcrum means located between said foot member and attaching shank, said fulcrum means comprising an upstanding boss on the foot member upon which the attaching shank bears to provide rocking. motion of said foot member relatively tosaid attaching shank. I

5-. A presser foot construction for sewing Inachines comprising an attaching shank, a foot member',.means securing said foot member to saidshank for rocking movements about horizontal axes one of which is transverse to the other, said means comprising upstanding spaced flanges on the foot member, apart on the shank lyin between'said flanges and having an upwardly facing transverselyextending groove therein, a pin supported by said flanges and lying in said groove, and fulcrum means between said attaching shank and foot member to facilitate said rocking movements. I

6. A presser foot construction for sewing machines comprising an attaching shank, a foot member, means securing saidffoot member to said shank for making movements about horiz'ontal axesone of which is transverse to the other, said means comprising upstanding spaced flanges on the footmember, a part on the shank lying between said flanges and having an upwardly facing transversely extending groove therein, a pin'supported by said flanges and lying in said groove, and fulcrum means between said attaching shankand foot membeiato facilitate said rocking movements, said fulcrum means comprising an upstanding boss. on the foot member upon which the shank bears.

7. A presser foot construction comprising a foot member, a sheet metal member'of channelshaped cross section having its body portion secured to the upper surface of the foot member and itsflanges projecting upwardly therefrom, an attaching shank having aforwardly extending portion lying between said flanges, a pin secured insaid flanges to overlie said shank por-' tion and connect the foot member thereto for rocking motion, said shank portion having a transversely extending groove in its upper surface Within which said pin is located, and fulcrum means between the sheet metal member and the shank portion to provide rocking movements of the foot member about transverse axes.

, 8. A presser foot construction for sewing machines comprising an attaching shank, a foot member, means securing said foot member to said [shank/for rocking movements about horizontal axes one of which is transverse to the other, said means comprising upstanding spaced flanges on the foot member, a part on the shank lying above and parallel to the foot member and disposed between said flanges and having an upwardly facing transversely extending groove therein, and a pin supported by said flanges and lying in said groove.

ORESTE BALZANO.

boss being disposed beneath the intermediate 

